GB20904-2007

Horizontal directional drilling - Safety operation rules

水平定向钻机安全操作规程

GB 20904-2007 é uma norma nacional chinesa obrigatória vigente: Horizontal directional drilling - Safety operation rules. Setor: Eletrônicos. Foco: Segurança de produtos. Entrada em vigor: 1 de out. de 2007.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

Applies to horizontal directional drilling machines defined in JB/T 10548. This standard is mandatory for all manufacturers and operators of HDD equipment in China. It covers general requirements, operating conditions, and safety procedures before, during, and after operation.

Requisitos técnicos

Specifies mandatory requirements for operator qualifications, requiring specialized training and familiarity with the equipment. Operators must wear insulating shoes, safety helmets, and insulating gloves. Details strict criteria for drill pipe maintenance and retirement. Drill pipes must be discarded if surface wear exceeds 15% of wall thickness, or if local bending exceeds 5mm per 500mm length. Friction-welded drill pipes require periodic flaw detection at the welds. Defines operating environment limits, specifically an ambient temperature range of -0°C to +40°C. It also mandates the installation of grounding protection devices as per the manual.

Métodos de ensaio

Involves pre-operation checks of hydraulic and electrical systems, calibration of the directional system, and testing of emergency stop switches. Post-operation requires visual inspection of reamer welds, splitter connecting pins, and drill tool threads for cracks or wear.

Perguntas frequentes

What products are regulated under GB 20904-2007?

It regulates horizontal directional drilling machines as specified in JB/T 10548.

What are the mandatory clauses in GB 20904-2007?

Clauses 3.1, 3.4, 3.12, 3.13a)~3.13c), and 3.17 are mandatory, covering operator training, PPE, drill pipe inspection, and grounding.

What are the environmental operating limits?

The standard specifies that the working environment temperature must be between -0°C and +40°C.

The summary above provides a high-level overview of GB 20904-2007. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20904-2007 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: P97
ICS: 53.100
Órgão competente: Ministry of Industry and Information Technology
Comitê técnico: Ministry of Industry and Information Technology